STREAMLINED FUNCTIONALITY - With a sturdy frame and mattress platform, functional underbed space and a clean silhouette, this foundation is practical minimalism at its very best.Item Dimensions : 80.5"L x 76"W x 38.6"H.Maximum weight recommendation:700 pounds DURABLY DESIGNED - Interior steel framework and dense foam padding add comfort and longevity; twin size supports a maximum weight capacity of 350 lbs, while all other sizes can support up to 700 lbs NO BOX SPRING NEEDED - Durable wood slats support and extend the life of your latex, memory foam or spring mattress without the need for a box spring; slats are spaced 2.2 - 2.8 inches apart